[1] Wake Forest Univ, Sch Med, Dept Pediat, Winston Salem, NC 27101 USA
[2] Univ Pittsburgh, Sch Med, Dept Pediat, Pittsburgh, PA USA
[3] Vanderbilt Univ, Dept Pediat, Nashville, TN USA
[4] Univ S Florida, Sch Med, Dept Pediat, Tampa, FL USA
[5] Univ Washington, Seattle Childrens Hosp, Dept Pediat, Seattle, WA USA
[6] Duke Univ, Dept Pediat, Sch Med, Durham, NC USA
[7] Emory Univ, Aflac Canc & Blood Disorders Ctr, Childrens Healthcare Atlanta, Atlanta, GA USA
[8] Duke Univ, Med Ctr Lib, Durham, NC USA
[9] Duke Univ, Sch Med, Dept Med, Div Hematol Malignancies & Cellular Therapy, Durham, NC USA